Title :
Monolithic Ku-band GaAs 1-watt constant phase variable power amplifier
Author :
Pritchett, Sam D.
Author_Institution :
Texas Instrum. Inc., Dallas, TX, USA
Abstract :
Three stages of dual-gate FETs (DGFETs) are used to achieve greater than 1-W output power with more than 14 dB associated gain under compressed RF drive while providing more than 30 dB of gain control. Minimal phase variation over the gain control range was also demonstrated. The first, second, and third stages have 800, 3200, and 6400- mu m gate peripheries, respectively. The compressed gain of this amplifier is >14 dB with >1 W output power over the 13.5- to 15.5-GHz band. The input return loss is typically >15 dB across the band.<>
Keywords :
III-V semiconductors; MMIC; field effect integrated circuits; gallium arsenide; microwave amplifiers; power amplifiers; power integrated circuits; 1 W; 13.5 to 15.5 GHz; 14 dB; DGFETs; GaAs; Ku-band; SHF; compressed RF drive; compressed gain; constant phase variable power amplifier; dual-gate FETs; gain; gain control; gate peripheries; input return loss; output power; semiconductors; Circuits; FETs; Gain control; Gallium arsenide; MMICs; Microwave amplifiers; Phased arrays; Power amplifiers; Power generation; Radiofrequency amplifiers;
Conference_Titel :
Microwave and Millimeter-Wave Monolithic Circuits Symposium, 1989. Digest of Papers., IEEE 1989
Conference_Location :
Long Beach, CA, USA
DOI :
10.1109/MCS.1989.37256
